Biology Basics Quiz
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Questions and Answers

What is the process by which cells divide by splitting in half?

Binary fission

What is the main component of a cell that surrounds and protects the cell's contents?

Plasma membrane

What is the central dogma of molecular biology?

DNA makes RNA makes proteins

What did Gregor Mendel study to establish the principles of dominant and recessive genes?

<p>Peas</p> Signup and view all the answers

What are the two main types of factors that make up an ecosystem?

<p>Abiotic and biotic factors</p> Signup and view all the answers

What keeps ecosystems healthy by creating niches for organisms to fit into?

<p>Dynamic relationship between populations and environmental pressures</p> Signup and view all the answers

Study Notes

Cell Structure and Function

Cells are the building blocks of life, and studying their structures allows us to understand their roles within organisms. The main components of cells include the plasma membrane, cytoplasm, nucleus containing genetic material, endoplasmic reticulum, Golgi apparatus, mitochondria, lysosomes, vacuoles, ribosomes, and chloroplasts. Cells can divide using binary fission—splitting in half—when they grow large enough.

Genetics

Genetics explores how genes determine what physical traits an organism has. The central dogma of molecular biology states that DNA makes RNA makes proteins, which define many aspects of our bodies. Humans share similarities in their DNA, yet variations lead to unique traits. For example, Gregor Mendel studied peas and found dominant and recessive genes; parents pass either on, leading to certain traits in children.

Ecology

Ecology focuses on interactions between organisms and their environments. Ecosystems are made up of abiotic factors (non-living elements) and biotic factors (organisms). Populations change due to environmental pressures, creating niches for organisms to fit into. This dynamic relationship keeps ecosystems healthy.

Human Anatomy

Understanding human anatomy means looking at the structure of organs within our bodies. Systems include skeletal (bones), muscular (movement), nervous (communication), respiratory (breathing), cardiovascular (blood circulation), digestive (food intake), urinary (waste removal), and reproductive systems (procreation). Each system plays its own vital role in maintaining our health and survival.

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Description

Test your knowledge on fundamental concepts in biology such as cell structure, genetics, ecology, and human anatomy. Learn about the main components of cells, the role of genes in determining physical traits, interactions between organisms and their environments, and the different systems within the human body.

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